Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models
文献类型：期刊论文
| 作者 | Su Buyun1; Zhou Zhiwei2; Zhang Jianjun1; Li Zhigiang1; Wang Zhihua1; Shu Xuefeng1 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 45期号:3页码:671-676 |
| 关键词 | open-cell metallic foams sphere-subtracted models dynamic crushing behaviors deformation modes |
| ISSN号 | 1002-185X |
| 通讯作者 | Li Zhigiang(lizhiqiang@tyut.edu.cn) |
| 英文摘要 | The dynamic crushing behaviors of the open-cell foams based on sphere-subtracted models were simulated by the LS-DYNA finite element software. Particularly, the influences of impacting velocity and relative density on deformation modes and plateau stress of the metallic foams were investigated. The simulation results indicate that the whole deformation modes of the metallic foams essentially reflect the different deformation modes of micro struts and have close relationship with the relative density and impact velocity. Under different impact velocities, the metallic foams present three different types of deformation modes, i.e., shock, transition and homogeneous deformation mode. With further deformation, a narrow localized instability band develops gradually in the mid-to-late shock and transition deformation mode. It weakens the bearing capacity of the metallic foams corresponding to apparent drop of the entire stress and plateau stress curves. The critical velocities, at which deformation modes switch from one mode to another, increase with relative density increasing. In addition, relative density, deformation mode and the inertia effect would affect the change of the plateau stress and thus the changing trend of the plateau stress is complex. |
| 收录类别 | SCI |
| WOS关键词 | FINITE-ELEMENT ; STRAIN |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000373754600025 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557291 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li Zhigiang |
| 作者单位 | 1.Taiyuan Univ Technol, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su Buyun,Zhou Zhiwei,Zhang Jianjun,et al. Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models[J]. RARE METAL MATERIALS AND ENGINEERING,2016,45(3):671-676. |
| APA | Su Buyun,Zhou Zhiwei,Zhang Jianjun,Li Zhigiang,Wang Zhihua,&Shu Xuefeng.(2016).Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models.RARE METAL MATERIALS AND ENGINEERING,45(3),671-676. |
| MLA | Su Buyun,et al."Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models".RARE METAL MATERIALS AND ENGINEERING 45.3(2016):671-676. |
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来源：寒区旱区环境与工程研究所
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